M

Mr. Dubey • 52.30K Points
Coach 

Q. Which of the following defect is also known as fish tailing?

(A) surface cracking
(B) pipe defect
(C) tearing
(D) internal cracking
Correct : Option (B)

Explanation: 
 in extrusion, the pipe defect is also termed as “tail pipe”, and “fish tailing”. it occurs during hot extrusion due to the presence of impurities and oxides.

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